Migrate Capabilities to new platform (elastic#51438)

* create service skeleton

* move registerCapabilitiesModifier to capabilities service and rename to registerCapabilitiesSwitcher

* starts to move capabilities logic to CapabilitiesService

* move capabilities route to service

* add initial integration test for capabilities route

* capabilitiesMixin now delegates to capability service

* use server-side Capabilities import in server code

* update generated doc

* remove capabilities from injectedMetadatas

* use applications sent from client instead of server-registered navLinks

* disable authRequired for capabilities route

* (temp) exposes two endpoints for capabilities

* Add fetch-mock on capabilities call for karma tests

* adapt xpack Capabilities test - first attempt

* adapt x-pack ui_capabilities test

* add '/status' to the list of anonymous pages

* Add documentation on Capabilities APIs

* move Capabilities to core/types

* update generated docs

* add service tests

* protecting resolveCapabilities against added/removed capabilities

* update generated docs

* adapt mocks due to rebase

* add forgotten exports

* improve capabilities routes registering

* name capabilities registering methods

* resolve conflicts due to merge

* address review issues

* add comment about reason for exposing two routes

* extract createHttpServer test helper

* fix merge conflicts

* improve documentation

* remove `/status` anon registration as now done in NP status plugin

* fix merge conflicts

.eslintrc.js

@@ -337,6 +337,7 @@ module.exports = {
                   '!src/core/server/index.ts',
                   '!src/core/server/mocks.ts',
                   '!src/core/server/types.ts',
+                  '!src/core/server/test_utils.ts',
                   // for absolute imports until fixed in
                   // https://github.com/elastic/kibana/issues/36096
                   '!src/core/server/types',

docs/development/core/server/kibana-plugin-server.capabilities.catalogue.md

@@ -0,0 +1,13 @@
+<!-- Do not edit this file. It is automatically generated by API Documenter. -->
+
+[Home](./index.md) &gt; [kibana-plugin-server](./kibana-plugin-server.md) &gt; [Capabilities](./kibana-plugin-server.capabilities.md) &gt; [catalogue](./kibana-plugin-server.capabilities.catalogue.md)
+
+## Capabilities.catalogue property
+
+Catalogue capabilities. Catalogue entries drive the visibility of the Kibana homepage options.
+
+<b>Signature:</b>
+
+```typescript
+catalogue: Record<string, boolean>;
+```

docs/development/core/server/kibana-plugin-server.capabilities.management.md

@@ -0,0 +1,15 @@
+<!-- Do not edit this file. It is automatically generated by API Documenter. -->
+
+[Home](./index.md) &gt; [kibana-plugin-server](./kibana-plugin-server.md) &gt; [Capabilities](./kibana-plugin-server.capabilities.md) &gt; [management](./kibana-plugin-server.capabilities.management.md)
+
+## Capabilities.management property
+
+Management section capabilities.
+
+<b>Signature:</b>
+
+```typescript
+management: {
+        [sectionId: string]: Record<string, boolean>;
+    };
+```

docs/development/core/server/kibana-plugin-server.capabilities.md

@@ -0,0 +1,22 @@
+<!-- Do not edit this file. It is automatically generated by API Documenter. -->
+
+[Home](./index.md) &gt; [kibana-plugin-server](./kibana-plugin-server.md) &gt; [Capabilities](./kibana-plugin-server.capabilities.md)
+
+## Capabilities interface
+
+The read-only set of capabilities available for the current UI session. Capabilities are simple key-value pairs of (string, boolean), where the string denotes the capability ID, and the boolean is a flag indicating if the capability is enabled or disabled.
+
+<b>Signature:</b>
+
+```typescript
+export interface Capabilities 
+```
+
+## Properties
+
+|  Property | Type | Description |
+|  --- | --- | --- |
+|  [catalogue](./kibana-plugin-server.capabilities.catalogue.md) | <code>Record&lt;string, boolean&gt;</code> | Catalogue capabilities. Catalogue entries drive the visibility of the Kibana homepage options. |
+|  [management](./kibana-plugin-server.capabilities.management.md) | <code>{</code><br/><code>        [sectionId: string]: Record&lt;string, boolean&gt;;</code><br/><code>    }</code> | Management section capabilities. |
+|  [navLinks](./kibana-plugin-server.capabilities.navlinks.md) | <code>Record&lt;string, boolean&gt;</code> | Navigation link capabilities. |
+

docs/development/core/server/kibana-plugin-server.capabilities.navlinks.md

@@ -0,0 +1,13 @@
+<!-- Do not edit this file. It is automatically generated by API Documenter. -->
+
+[Home](./index.md) &gt; [kibana-plugin-server](./kibana-plugin-server.md) &gt; [Capabilities](./kibana-plugin-server.capabilities.md) &gt; [navLinks](./kibana-plugin-server.capabilities.navlinks.md)
+
+## Capabilities.navLinks property
+
+Navigation link capabilities.
+
+<b>Signature:</b>
+
+```typescript
+navLinks: Record<string, boolean>;
+```

docs/development/core/server/kibana-plugin-server.capabilitiesprovider.md

@@ -0,0 +1,13 @@
+<!-- Do not edit this file. It is automatically generated by API Documenter. -->
+
+[Home](./index.md) &gt; [kibana-plugin-server](./kibana-plugin-server.md) &gt; [CapabilitiesProvider](./kibana-plugin-server.capabilitiesprovider.md)
+
+## CapabilitiesProvider type
+
+See [CapabilitiesSetup](./kibana-plugin-server.capabilitiessetup.md)
+
+<b>Signature:</b>
+
+```typescript
+export declare type CapabilitiesProvider = () => Partial<Capabilities>;
+```

docs/development/core/server/kibana-plugin-server.capabilitiessetup.md

@@ -0,0 +1,27 @@
+<!-- Do not edit this file. It is automatically generated by API Documenter. -->
+
+[Home](./index.md) &gt; [kibana-plugin-server](./kibana-plugin-server.md) &gt; [CapabilitiesSetup](./kibana-plugin-server.capabilitiessetup.md)
+
+## CapabilitiesSetup interface
+
+APIs to manage the [Capabilities](./kibana-plugin-server.capabilities.md) that will be used by the application.
+
+Plugins relying on capabilities to toggle some of their features should register them during the setup phase using the `registerProvider` method.
+
+Plugins having the responsibility to restrict capabilities depending on a given context should register their capabilities switcher using the `registerSwitcher` method.
+
+Refers to the methods documentation for complete description and examples.
+
+<b>Signature:</b>
+
+```typescript
+export interface CapabilitiesSetup 
+```
+
+## Methods
+
+|  Method | Description |
+|  --- | --- |
+|  [registerProvider(provider)](./kibana-plugin-server.capabilitiessetup.registerprovider.md) | Register a [CapabilitiesProvider](./kibana-plugin-server.capabilitiesprovider.md) to be used to provide [Capabilities](./kibana-plugin-server.capabilities.md) when resolving them. |
+|  [registerSwitcher(switcher)](./kibana-plugin-server.capabilitiessetup.registerswitcher.md) | Register a [CapabilitiesSwitcher](./kibana-plugin-server.capabilitiesswitcher.md) to be used to change the default state of the [Capabilities](./kibana-plugin-server.capabilities.md) entries when resolving them.<!-- -->A capabilities switcher can only change the state of existing capabilities. Capabilities added or removed when invoking the switcher will be ignored. |
+

docs/development/core/server/kibana-plugin-server.capabilitiessetup.registerprovider.md

@@ -0,0 +1,46 @@
+<!-- Do not edit this file. It is automatically generated by API Documenter. -->
+
+[Home](./index.md) &gt; [kibana-plugin-server](./kibana-plugin-server.md) &gt; [CapabilitiesSetup](./kibana-plugin-server.capabilitiessetup.md) &gt; [registerProvider](./kibana-plugin-server.capabilitiessetup.registerprovider.md)
+
+## CapabilitiesSetup.registerProvider() method
+
+Register a [CapabilitiesProvider](./kibana-plugin-server.capabilitiesprovider.md) to be used to provide [Capabilities](./kibana-plugin-server.capabilities.md) when resolving them.
+
+<b>Signature:</b>
+
+```typescript
+registerProvider(provider: CapabilitiesProvider): void;
+```
+
+## Parameters
+
+|  Parameter | Type | Description |
+|  --- | --- | --- |
+|  provider | <code>CapabilitiesProvider</code> |  |
+
+<b>Returns:</b>
+
+`void`
+
+## Example
+
+How to register a plugin's capabilities during setup
+
+```ts
+// my-plugin/server/plugin.ts
+public setup(core: CoreSetup, deps: {}) {
+   core.capabilities.registerProvider(() => {
+     return {
+       catalogue: {
+         myPlugin: true,
+       },
+       myPlugin: {
+         someFeature: true,
+         featureDisabledByDefault: false,
+       },
+     }
+   });
+}
+
+```
+

docs/development/core/server/kibana-plugin-server.capabilitiessetup.registerswitcher.md

@@ -0,0 +1,47 @@
+<!-- Do not edit this file. It is automatically generated by API Documenter. -->
+
+[Home](./index.md) &gt; [kibana-plugin-server](./kibana-plugin-server.md) &gt; [CapabilitiesSetup](./kibana-plugin-server.capabilitiessetup.md) &gt; [registerSwitcher](./kibana-plugin-server.capabilitiessetup.registerswitcher.md)
+
+## CapabilitiesSetup.registerSwitcher() method
+
+Register a [CapabilitiesSwitcher](./kibana-plugin-server.capabilitiesswitcher.md) to be used to change the default state of the [Capabilities](./kibana-plugin-server.capabilities.md) entries when resolving them.
+
+A capabilities switcher can only change the state of existing capabilities. Capabilities added or removed when invoking the switcher will be ignored.
+
+<b>Signature:</b>
+
+```typescript
+registerSwitcher(switcher: CapabilitiesSwitcher): void;
+```
+
+## Parameters
+
+|  Parameter | Type | Description |
+|  --- | --- | --- |
+|  switcher | <code>CapabilitiesSwitcher</code> |  |
+
+<b>Returns:</b>
+
+`void`
+
+## Example
+
+How to restrict some capabilities
+
+```ts
+// my-plugin/server/plugin.ts
+public setup(core: CoreSetup, deps: {}) {
+   core.capabilities.registerSwitcher((request, capabilities) => {
+     if(myPluginApi.shouldRestrictSomePluginBecauseOf(request)) {
+       return {
+         somePlugin: {
+           featureEnabledByDefault: false // `featureEnabledByDefault` will be disabled. All other capabilities will remain unchanged.
+         }
+       }
+     }
+     return {}; // All capabilities will remain unchanged.
+   });
+}
+
+```
+

docs/development/core/server/kibana-plugin-server.capabilitiesstart.md

@@ -0,0 +1,20 @@
+<!-- Do not edit this file. It is automatically generated by API Documenter. -->
+
+[Home](./index.md) &gt; [kibana-plugin-server](./kibana-plugin-server.md) &gt; [CapabilitiesStart](./kibana-plugin-server.capabilitiesstart.md)
+
+## CapabilitiesStart interface
+
+APIs to access the application [Capabilities](./kibana-plugin-server.capabilities.md)<!-- -->.
+
+<b>Signature:</b>
+
+```typescript
+export interface CapabilitiesStart 
+```
+
+## Methods
+
+|  Method | Description |
+|  --- | --- |
+|  [resolveCapabilities(request)](./kibana-plugin-server.capabilitiesstart.resolvecapabilities.md) | Resolve the [Capabilities](./kibana-plugin-server.capabilities.md) to be used for given request |
+

docs/development/core/server/kibana-plugin-server.capabilitiesstart.resolvecapabilities.md

@@ -0,0 +1,24 @@
+<!-- Do not edit this file. It is automatically generated by API Documenter. -->
+
+[Home](./index.md) &gt; [kibana-plugin-server](./kibana-plugin-server.md) &gt; [CapabilitiesStart](./kibana-plugin-server.capabilitiesstart.md) &gt; [resolveCapabilities](./kibana-plugin-server.capabilitiesstart.resolvecapabilities.md)
+
+## CapabilitiesStart.resolveCapabilities() method
+
+Resolve the [Capabilities](./kibana-plugin-server.capabilities.md) to be used for given request
+
+<b>Signature:</b>
+
+```typescript
+resolveCapabilities(request: KibanaRequest): Promise<Capabilities>;
+```
+
+## Parameters
+
+|  Parameter | Type | Description |
+|  --- | --- | --- |
+|  request | <code>KibanaRequest</code> |  |
+
+<b>Returns:</b>
+
+`Promise<Capabilities>`
+

docs/development/core/server/kibana-plugin-server.capabilitiesswitcher.md

@@ -0,0 +1,13 @@
+<!-- Do not edit this file. It is automatically generated by API Documenter. -->
+
+[Home](./index.md) &gt; [kibana-plugin-server](./kibana-plugin-server.md) &gt; [CapabilitiesSwitcher](./kibana-plugin-server.capabilitiesswitcher.md)
+
+## CapabilitiesSwitcher type
+
+See [CapabilitiesSetup](./kibana-plugin-server.capabilitiessetup.md)
+
+<b>Signature:</b>
+
+```typescript
+export declare type CapabilitiesSwitcher = (request: KibanaRequest, uiCapabilities: Capabilities) => Partial<Capabilities> | Promise<Partial<Capabilities>>;
+```

docs/development/core/server/kibana-plugin-server.coresetup.capabilities.md

@@ -0,0 +1,13 @@
+<!-- Do not edit this file. It is automatically generated by API Documenter. -->
+
+[Home](./index.md) &gt; [kibana-plugin-server](./kibana-plugin-server.md) &gt; [CoreSetup](./kibana-plugin-server.coresetup.md) &gt; [capabilities](./kibana-plugin-server.coresetup.capabilities.md)
+
+## CoreSetup.capabilities property
+
+[CapabilitiesSetup](./kibana-plugin-server.capabilitiessetup.md)
+
+<b>Signature:</b>
+
+```typescript
+capabilities: CapabilitiesSetup;
+```

docs/development/core/server/kibana-plugin-server.coresetup.md

@@ -16,6 +16,7 @@ export interface CoreSetup
 
 |  Property | Type | Description |
 |  --- | --- | --- |
+|  [capabilities](./kibana-plugin-server.coresetup.capabilities.md) | <code>CapabilitiesSetup</code> | [CapabilitiesSetup](./kibana-plugin-server.capabilitiessetup.md) |
 |  [context](./kibana-plugin-server.coresetup.context.md) | <code>ContextSetup</code> | [ContextSetup](./kibana-plugin-server.contextsetup.md) |
 |  [elasticsearch](./kibana-plugin-server.coresetup.elasticsearch.md) | <code>ElasticsearchServiceSetup</code> | [ElasticsearchServiceSetup](./kibana-plugin-server.elasticsearchservicesetup.md) |
 |  [http](./kibana-plugin-server.coresetup.http.md) | <code>HttpServiceSetup</code> | [HttpServiceSetup](./kibana-plugin-server.httpservicesetup.md) |

docs/development/core/server/kibana-plugin-server.corestart.capabilities.md

@@ -0,0 +1,13 @@
+<!-- Do not edit this file. It is automatically generated by API Documenter. -->
+
+[Home](./index.md) &gt; [kibana-plugin-server](./kibana-plugin-server.md) &gt; [CoreStart](./kibana-plugin-server.corestart.md) &gt; [capabilities](./kibana-plugin-server.corestart.capabilities.md)
+
+## CoreStart.capabilities property
+
+[CapabilitiesStart](./kibana-plugin-server.capabilitiesstart.md)
+
+<b>Signature:</b>
+
+```typescript
+capabilities: CapabilitiesStart;
+```

docs/development/core/server/kibana-plugin-server.corestart.md

@@ -16,5 +16,6 @@ export interface CoreStart
 
 |  Property | Type | Description |
 |  --- | --- | --- |
+|  [capabilities](./kibana-plugin-server.corestart.capabilities.md) | <code>CapabilitiesStart</code> | [CapabilitiesStart](./kibana-plugin-server.capabilitiesstart.md) |
 |  [savedObjects](./kibana-plugin-server.corestart.savedobjects.md) | <code>SavedObjectsServiceStart</code> | [SavedObjectsServiceStart](./kibana-plugin-server.savedobjectsservicestart.md) |
 

docs/development/core/server/kibana-plugin-server.md

@@ -43,6 +43,9 @@ The plugin integrates with the core system via lifecycle events: `setup`<!-- -->
 |  [AuthResultParams](./kibana-plugin-server.authresultparams.md) | Result of an incoming request authentication. |
 |  [AuthToolkit](./kibana-plugin-server.authtoolkit.md) | A tool set defining an outcome of Auth interceptor for incoming request. |
 |  [CallAPIOptions](./kibana-plugin-server.callapioptions.md) | The set of options that defines how API call should be made and result be processed. |
+|  [Capabilities](./kibana-plugin-server.capabilities.md) | The read-only set of capabilities available for the current UI session. Capabilities are simple key-value pairs of (string, boolean), where the string denotes the capability ID, and the boolean is a flag indicating if the capability is enabled or disabled. |
+|  [CapabilitiesSetup](./kibana-plugin-server.capabilitiessetup.md) | APIs to manage the [Capabilities](./kibana-plugin-server.capabilities.md) that will be used by the application.<!-- -->Plugins relying on capabilities to toggle some of their features should register them during the setup phase using the <code>registerProvider</code> method.<!-- -->Plugins having the responsibility to restrict capabilities depending on a given context should register their capabilities switcher using the <code>registerSwitcher</code> method.<!-- -->Refers to the methods documentation for complete description and examples. |
+|  [CapabilitiesStart](./kibana-plugin-server.capabilitiesstart.md) | APIs to access the application [Capabilities](./kibana-plugin-server.capabilities.md)<!-- -->. |
 |  [ContextSetup](./kibana-plugin-server.contextsetup.md) | An object that handles registration of context providers and configuring handlers with context. |
 |  [CoreSetup](./kibana-plugin-server.coresetup.md) | Context passed to the plugins <code>setup</code> method. |
 |  [CoreStart](./kibana-plugin-server.corestart.md) | Context passed to the plugins <code>start</code> method. |
@@ -144,6 +147,8 @@ The plugin integrates with the core system via lifecycle events: `setup`<!-- -->
 |  [AuthenticationHandler](./kibana-plugin-server.authenticationhandler.md) | See [AuthToolkit](./kibana-plugin-server.authtoolkit.md)<!-- -->. |
 |  [AuthHeaders](./kibana-plugin-server.authheaders.md) | Auth Headers map |
 |  [AuthResult](./kibana-plugin-server.authresult.md) |  |
+|  [CapabilitiesProvider](./kibana-plugin-server.capabilitiesprovider.md) | See [CapabilitiesSetup](./kibana-plugin-server.capabilitiessetup.md) |
+|  [CapabilitiesSwitcher](./kibana-plugin-server.capabilitiesswitcher.md) | See [CapabilitiesSetup](./kibana-plugin-server.capabilitiessetup.md) |
 |  [ConfigPath](./kibana-plugin-server.configpath.md) |  |
 |  [ElasticsearchClientConfig](./kibana-plugin-server.elasticsearchclientconfig.md) |  |
 |  [GetAuthHeaders](./kibana-plugin-server.getauthheaders.md) | Get headers to authenticate a user against Elasticsearch. |

src/core/public/application/application_service.test.tsx

@@ -136,7 +136,7 @@ describe('#start()', () => {
     expect(MockCapabilitiesService.start).toHaveBeenCalledWith({
       apps: new Map([['app1', { id: 'app1' }]]),
       legacyApps: new Map(),
-      injectedMetadata,
+      http,
     });
   });
 
@@ -153,7 +153,7 @@ describe('#start()', () => {
     expect(MockCapabilitiesService.start).toHaveBeenCalledWith({
       apps: new Map(),
       legacyApps: new Map([['legacyApp1', { id: 'legacyApp1' }]]),
-      injectedMetadata,
+      http,
     });
   });
 

src/core/public/application/application_service.tsx

@@ -111,9 +111,9 @@ export class ApplicationService {
     const legacyMode = injectedMetadata.getLegacyMode();
     const currentAppId$ = new BehaviorSubject<string | undefined>(undefined);
     const { availableApps, availableLegacyApps, capabilities } = await this.capabilities.start({
+      http,
       apps: new Map([...this.apps$.value].map(([id, { app }]) => [id, app])),
       legacyApps: this.legacyApps$.value,
-      injectedMetadata,
     });
 
     // Only setup history if we're not in legacy mode